<template>
    <!-- 登录页面的整体盒子 -->
    <div class="login-container">
        <!-- 登录的盒子 -->
        <div class="login-box">
            <!-- 标题的盒子 -->
            <div class="title-box"></div>
            <!-- 登录的表单区域 -->
            <el-form :model="loginForm" :rules="loginRules" ref="loginRef">
                <!-- 用户名 -->
                <el-form-item prop="username">
                    <el-input v-model="loginForm.username" placeholder="请输入用户名" maxlength="10" minlength="1"></el-input>
                </el-form-item>
                <!-- 密码 -->
                <el-form-item prop="password">
                    <el-input v-model="loginForm.password" type="password" placeholder="请输入密码" maxlength="15"
                        minlength="6"></el-input>
                </el-form-item>
                <el-form-item>
                    <el-button type="primary" class="btn-login" @click="btn">登录</el-button>
                    <el-link type="info" @click="$router.push('/ressing')">去注册</el-link>
                </el-form-item>
            </el-form>
        </div>
    </div>
</template>
  
<script>
import { login } from '@/api/user'
export default {
    name: 'Login',
    data() {
        return {
            // 登录表单的数据对象
            loginForm: {
                username: '',
                password: ''
            },
            // 登录表单的验证规则对象
            loginRules: {
                username: [
                    { required: true, message: '请输入用户名', trigger: 'blur' },
                    { pattern: /^[a-zA-Z][a-zA-Z0-9]{0,9}$/, message: '用户名必须是1-10的字母数字,数字不能开头', trigger: 'blur' }
                ],
                password: [
                    { required: true, message: '请输入密码', trigger: 'blur' },
                    { pattern: /^\S{6,15}$/, message: '密码必须是6-15的非空字符', trigger: 'blur' }
                ]
            }
        }
    },
    methods: {
        btn() {
            this.$refs.loginRef.validate(valid => {
                if (!valid) return console.log('校验失败');
                // 校验成功
                this.dologin()
            })
        },
        async dologin() {

            try {
                const res = await login(this.loginForm)
                console.log('login', res)
                //   提示用户
                //提示
                if (res.code !== 0) return this.$message.error(res.message)
                this.$message.success(res.message)
                // 保存token 到vuex中
                const token = res.token
                console.log('token', token);
                this.$store.commit('user/updaToken', token)
                // 跳转到首页
                this.$router.push('/')
            } catch (err) {
                console.log('login', err)
            }
        },
    }
}
</script>
  
<style lang="less" scoped>
.login-container {
    background: url('../../assets/images/login_bg.jpg') center;
    background-size: cover;
    height: 100%;

    .login-box {
        width: 400px;
        height: 270px;
        background-color: #fff;
        border-radius: 3px;
        position: absolute;
        left: 50%;
        top: 50%;
        transform: translate(-50%, -50%);
        padding: 0 30px;
        box-sizing: border-box;

        .title-box {
            height: 60px;
            background: url('../../assets/images/login_title.png') center no-repeat;
        }

        .btn-login {
            width: 100%;
        }
    }
}
</style>
  